I agree, I am running 6.6.20 without any problems related to BOINC...
the problems I am running into today are completely coffee related... or lack thereof.
I decided that if I was going to OC my computer, I had better use some Artic Silver 5 thermal compound rather than the stuff that comes on a retail HSF.
I scraped all the old stuff off, applied a nice thin layer of the new stuff...
popped it all back together, and bumped up my "MHz"...
for some reason, my computer wouldn't get to vista... just a boot-loop.
so I entered the setup again, and checked the "PC Heath" status.
the CPU temp was 44c and climbing!! Crap!

I looked inside my computer, and the fan was not moving... yeah, I never plugged it in

so I blame the lack of coffee!!! hehe

oh... and the 4200+ doesn't like to run at 2.7+ Ghz...not on stock air anyway...